- Yes, Mozilla is still the better browser when it comes to privacy.
- Yes, Mozilla has made missteps with Pocket and Mr. Robot.
- Yes, it is slow/resource heavy on certain Macs with non-default resolutions. Yes, Mozilla is working on a fix.
- Yes, it has become really fast for most users after Quantum improvements landed, and likely will continue to get better.
- No, you can't just "fork Chromium" if you don't like the way Google is running the project. Web developers will still make their website work well with whatever Google releases, regardless of standards.
- Yes, Firefox doesn't feel native on your platform of choice.
- Yes, neither does Chrome (doesn't support dark mode on macOS)
- Yes, Chrome has better security against malware.
- Yes, Firefox removed the feature that was essential to your workflow, even though most users don't care.
edit, thought of one more
- No, the argument "Chrome will be the new IE if you don't use Firefox" doesn't matter to most users.